Company lists · Data refreshed September 2026
Top 25 Software outsourcing firms based in Australia
RevenueBase identified 1,230 software outsourcing firms headquartered in Australia as of September 2026 and tracks 12,950 professional contacts across them, including 3,472 with verified work emails and 548 with mobile numbers. Sydney is the largest hub.
This list covers software outsourcing firms headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest software outsourcing firms based in Australia
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Indirect evidence | 920 contacts → | |||
“What sets Attra apart?” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Indirect evidence | 436 contacts → | |||
“BSA has evolved to become one of Australia’s leading technical services companies, providing rich and adapted solutions that are both flexible in delivery and a testament to many…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Partial evidence | 349 contacts → | |||
“hammerjack is an Australian and Philippine-owned offshore outsourcing and Knowledge Process Outsourcing (KPO) provider.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Partial evidence | 304 contacts → | |||
“DBA is a premium professional services outsourcing company based in Australia and the Philippines.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Partial evidence | 282 contacts → | |||
“DEK Technologies, a global, best in class provider of software and hardware development services to hi-tech industries, has joined forces with Endava to bring even more value for…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Indirect evidence | 262 contacts → | |||
“Silicon Stack® is a rapidly expanding Australian enterprise headquartered in Melbourne, with an extensive clientele spanning Australia, NZ, Europe, North America, and Asia.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Indirect evidence | 224 contacts → | |||
“At EB Pearls, we believe in the power of technology to transform businesses and enrich lives.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Indirect evidence | 190 contacts → | |||
“Serole Technologies is a leading provider of end-to-end IT services and solutions for Large Enterprises to Small to Medium companies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Indirect evidence | 156 contacts → | |||
“Adaps is Australia’s oldest privately owned IT services company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Indirect evidence | 147 contacts → | |||
“FLEXISOURCE IT PTY LTD is a privately held company based in Australia that provides IT consulting and business services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Partial evidence | 124 contacts → | |||
“Sibedge is a globally distributed software engineering company that puts people first.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Indirect evidence | 123 contacts → | |||
“Rise from the Ordinary.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Partial evidence | 119 contacts → | |||
“Fabric Group is a collective of passionate technology professionals focused on delivering bespoke software solutions for our clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Partial evidence | 110 contacts → | |||
“SRA Information Technology Pty Ltd (SRA) is a leading software services organisation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Indirect evidence | 105 contacts → | |||
“Globant’s Commerce Studio helps organizations create best-in-class commerce-enabled experiences, with engineering and design at its core.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Indirect evidence | 79 contacts → | |||
“We help you engage your clients, empower your people and enable your future.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Partial evidence | 70 contacts → | |||
“Nuclieos is a software development company based in Melbourne, Australia, delivering innovative, AI-driven solutions to businesses worldwide.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 66 contacts → | |||
“ITConnexion has provided high-quality innovative and customised technology solutions for our clients since 2003.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Partial evidence | 65 contacts → | |||
“Founded on the idea of revolutionizing business operations with the best possible outsourcing systems for an inexpensive rate, Onehalf allows big businesses and even small…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 63 contacts → | |||
“Since 2004 Intergy Consulting has been helping clients realise their business vision through delivering innovative, high quality, customised IT solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Partial evidence | 62 contacts → | |||
“Established in 2016, Tech Source Managed Services is an Outsourcing Company which not only works on major IT projects of other companies but also handles operational matters and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Partial evidence | 62 contacts → | |||
“Since our inception in 1996, ISW has been recognised as one of the most experienced and competent IT organisations across the Cloud, Software, Application Development and Service…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 62 contacts → | |||
“ISA Technologies is an innovative West Australian ICT Company focused on delivering Enterprise Solutions through Consulting Services, Application Development, Operational Services…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Indirect evidence | 61 contacts → | |||
“We help businesses reduce costs, boost efficiency, and scale faster, without the HR burden.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Indirect evidence | 58 contacts → | |||
“Established in 1976, Fenwick has had over forty years to refine its culture; build relationships with its staff, clients and suppliers; develop its methodologies for the sale and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: software outsourcing firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names software outsourcing firms.
- Partial evidence
- Its own public description names part of software outsourcing firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name software outsourcing firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,230 software outsourcing firms based in Australia
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Software outsourcing firms based in Australia at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among software outsourcing firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Australia whose own description of what they do matches “software outsourcing firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names software outsourcing firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among software outsourcing firms, and records with no verified work email. Companies headquartered outside Australia are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,472 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Software outsourcing firms by metro
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names software outsourcing firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many software outsourcing firms are there based in Australia?
RevenueBase identified 1,230 software outsourcing firms headquartered in Australia as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Attra, A Synechron Company, headquartered in Box Hill, tops this list with the largest team on record.
Which city has the most software outsourcing firms?
Sydney leads with 224 headquartered companies, followed by Melbourne (211) and Brisbane (67).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,472 verified decision-maker contacts tracked across these 1,230 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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